Four of the five biomarkers (FABP3, t-tau, p-tau, Aβ1–42) had a similar accuracy when discriminating patients with DLB from the OND group (AUC approximately 0.7), whereas no biomarker was able to achieve an adequate discrimination of PD from OND (t-tau AUC 0.54). This evidence concerns the gene FABP3 and Parkinson disease.